Java中如何使用Scanner类读取.txt文件呢?

实现思路:
    使用File类即可读取".txt"文件

public static void main(String[] args) {
    File file = new File("testFile.txt");
    try {
        Scanner sc = new Scanner(file);
        while (sc.hasNextLine()) {
            int i = sc.nextInt();
            System.out.println(i);
        }
        sc.close();
    } 
    catch (FileNotFoundException e) {
        e.printStackTrace();
    }
 }